How to reconcile the hadith (There is no hijrah after the conquest) with the occurrence of invoking the dead at graves in Makkah in certain times?

Question:
May Allah reward you, Your Eminence, father. The questioner says: In the saying of the Prophet (peace and blessings be upon him), "There is no hijrah after the conquest," meaning the conquest of Makkah, because it became a land of Islam. He says: Before the call of Shaykh Muhammad ibn 'Abd al-Wahhab (may Allah have mercy on him), there were graves and shirk (associating partners with Allah) in Makkah. Did it thereby become a land of shirk? And how do you reconcile that with the hadith?

Answer:
Yes. The hadith refers to the time after the conquest, when the idols were demolished, including al-Lat and al-'Uzzah, and no idols remained in it, praise be to Allah. Allah purified it with Islam in the time of the Messenger (peace and blessings be upon him), in the year of the conquest and after. Then, later, the construction of shrines and the invocation of the dead occurred. This was a later development, and it thereby became a land of shirk until it was removed, praise be to Allah, and purified of that. Yes.